Comparison

B Complex and B-100 Complex With Folic Acid

B Complex (Thompson) lists 11 distinct ingredients and B-100 Complex With Folic Acid (Radiance Select) 10 (rows of one ingredient counted once); 10 are on both labels. On the site's similarity measure, which compares ingredient lists (1 for the same list, rarer ingredients counting for more; amounts are not part of it), the two formulas score 0.93.

Amount per serving (and % of the Daily Value)
IngredientB ComplexB-100 Complex With Folic Acid
Vitamin B68.2 mg (482%)100 mg (5882%)
Vitamin B1210 mcg (417%)100 mcg (4167%)
Niacin50 mg (313%)100 mg (625%)
Folate400 mcg400 mcg
Pantothenic Acid (Vitamin B5)13 mg (260%)100 mg (2000%)
Riboflavin10 mg (769%)100 mg (7692%)
Thiamin9.5 mg (792%)100 mg (8333%)
Biotin20 mcg (67%)100 mcg (333%)
Choline50 mg (9%)20 mg (4%)
Inositol5 mg100 mg
Calcium56 mg (4%)

Amounts are per serving as DSLD gives them: B Complex, 2 tablets; B-100 Complex With Folic Acid, 1 capsule. Current labels entered August 2014 and December 2011. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own